Texas Family Code - FAM § 201.1021. Qualifications

(a) To be eligible for appointment under this subchapter, a person must be a citizen of the United States, have resided in this state for the two years preceding the date of appointment, and be:

(b) An associate judge appointed under this subchapter shall during the term of appointment reside in the administrative judicial region, or a county adjacent to the region, in which the court to which the associate judge is appointed is located.  An associate judge appointed to serve in two or more administrative judicial regions may reside anywhere in the regions.